Disable ServiceLB after install
Simple… Just re-install the master node.
curl -sfL https://get.k3s.io | sh -s - server --no-deploy servicelb
This should be very similar to the command used to do the initial install. See the syntax under the “INSTALL_K3S_EXEC” option in Install Options
This just removed the DeamonSet for the ServiceLB.
You're now ready to install some other LB (eg MetalLB)